| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Taurus |
| Right ascension | 03 46 38.3922 |
| Declination | +22° 55′ 11.200″ |
| Apparent magnitude (V) | 9.43 |
| Characteristics | |
| Spectral type | F5V + M8 |
| U−B color index | 0.02 |
| B−V color index | 0.50 |
| Astrometry | |
| Radial velocity (Rv) | 6.32±0.44 km/s |
| Proper motion (μ) | RA: 19.924 mas/yr Dec.: -43.549 mas/yr |
| Parallax (π) | 7.1526 ± 0.0204 mas |
| Distance | 456 ± 1 ly (139.8 ± 0.4 pc) |
| Details | |
| HD 23514 A | |
| Mass | 1.35 M☉ |
| Radius | 1.28 R☉ |
| Luminosity | 2.8 L☉ |
| Temperature | 6400 K |
| Metallicity | 9.95 |
| Age | 120±10 Myr |
| HD 23514 B | |
| Mass | 0.06±0.01 M☉ |
| Temperature | 2600±100 K |
| Other designations | |
| BD+22 550, HD 23514, SAO 76178, EPIC 210996505, TYC 1800-1574-1 | |
| Database references | |
| SIMBAD | data |
HD 23514, is a star in the Pleiades. It is a main-sequence star of class F6, and has been seen to have hot dust particles orbiting around it. These materials, otherwise known as planetesimals which orbit within a circumstellar disc, are evidence of possible planetary formation. The debris disk shows evidence of being rich in silica.
The star system itself is very young, in the 35~100 million years range, meaning that it is very well likely at the stage of forming planets.
HD 23514 has a brown dwarf companion (HD 23154 B), estimated to have a mass of about 0.06 ± 0.01 solar masses and a temperature of 2,600 ± 100K, and separated by about 360 AU from the primary. The spectra of HD 23154 B have been found to have features typical of late-M dwarfs, including FeH absorption, strong CO bands and Na I absorption, and a near-infrared spectral type of M8 ± 1 has been proposed.
The star will be continuously studied to confirm whether it may be a potential candidate for planetary formation.
References
- ^ Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ "HD 23514". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 5 September 2024.
- ^ Bowler, Brendan P.; Shkolnik, Evgenya L.; Liu, Michael C.; Schlieder, Joshua E.; Mann, Andrew W.; Dupuy, Trent J.; Hinkley, Sasha; Crepp, Justin R.; Johnson, John Asher; Howard, Andrew W.; Flagg, Laura (2015-06-09). "Planets Around Low-Mass Stars (PALMS). V. Age-Dating Low-Mass Companions to Members and Interlopers of Young Moving Groups". The Astrophysical Journal. 806 (1): 62. arXiv:1505.01494. Bibcode:2015ApJ...806...62B. doi:10.1088/0004-637X/806/1/62. hdl:10871/17603. ISSN 1538-4357. S2CID 444856.
- ^ Rodriguez, David R.; Marois, Christian; Zuckerman, B.; Macintosh, Bruce; Melis, Carl (2012). "A Substellar Companion to the Dusty Pleiades Star HD 23514". The Astrophysical Journal. 748 (1): 30. arXiv:1112.4815. Bibcode:2012ApJ...748...30R. doi:10.1088/0004-637X/748/1/30. S2CID 55022993.
- Meng, Huan Y. A.; Su, Kate Y. L.; Rieke, George H.; Rujopakarn, Wiphu; Myers, Gordon; Cook, Michael; Erdelyi, Emery; Maloney, Chris; McMath, James; Persha, Gerald; Poshyachinda, Saran (2015-05-21). "Planetary Collisions outside the Solar System: Time Domain Characterization of Extreme Debris Disks". The Astrophysical Journal. 805 (1): 77. arXiv:1503.05610. Bibcode:2015ApJ...805...77M. doi:10.1088/0004-637X/805/1/77. ISSN 1538-4357. S2CID 117096761.
